61. This country sprayed Agent Orange on North Vietnam ________.

62. Agent Orange is a __________.

63. Agent Orange is called so because __________.

64. The element in Agent Orange is ________

65. The effect of Agent Orange on children ________.

66. The chemical weapons used by USA on Vietnam __________.

67. War between North Vietnam and USA ended in __________

68. Vietnam was unified on ____________.

69. The country on the west coast of Africa ________.

70. Nigeria was the colony of ________

71. Tribal communities in Vietnam __________.

72. The country Nigeria was created by __________

73. Northern Nigeria is dominated by these tribal people ________

74. South-Eastern Nigeria is dominated by these tribal people ________

75. South-Western Nigeria is dominated by these tribal people __________

76. From the 16th century, this was major source of slaves for America ________.

77. Pan Africanism means ________.

78. The key person for Pan-Africanism __________.

79. Kwama Nkrumah was a freedom fighter from ____________.

80. The leader of Nigerian National Democratic Party ( NNDP ) ______.